<script setup>
    import {useCartStore} from '@/stores/cart.js';
    const props = defineProps(['item','shopName'])

    const carStore = useCartStore()

    // let res = carStore.cartList.find(item=>item.name === props.shopName)
    // console.log(res);

    const btnJia = ()=>{
        props.item.number ++

        //1、查询有没有这个店铺
        let res = carStore.cartList.find(item=>item.name === props.shopName)

        //2、如果没有就添加购物车
        if(!res){
            //没有购物车就把数据添加进去
            let cart = {name:'',list:[]}
            cart.name = props.shopName
            cart.list.push(props.item)
            carStore.cartList.push(cart)
        }else{
        
            //有购物车就判断有没有商品
            let resNew = res.list.find(item => item.id === props.item.id)

            if(!resNew){
                res.list.push(props.item)
            }
        }

    }

    const btnJian = ()=>{
        if(props.item.number > 0){
            props.item.number --
        }   
        
        //如果值为0那就删除该数据
        if(props.item.number === 0){

            //1.查询有没有这个店铺
            let res = carStore.cartList.find(item=>item.name === props.shopName)

            //2.有这个店铺就把里面等于0的值筛选出来
            if(res){
                res.list = res.list.filter(item=>item.id !== props.item.id)
            }
    }
    
}

</script>

<template>
    <div class="product">
        <div class="product_img">  <!-- <div class="product_img--min"> -->
            <img :src="`http://www.dell-lee.com/imgs/vue3/${item.imgName}.png`" alt="">
        </div>
        <div class="product_content">
            <div class="product_content_title">{{ item.title }}</div>
            <!-- <div class="product_content_sales">月售 {{ props.product.sales }} 件</div> -->
            <slot></slot>
            <div class="product_content_price">￥{{ item.price }}<span class="product_content_old_price">￥{{ item.oldPrice }}</span></div>
            
        </div>
        <div class="product_number">
            <span class="product_number_minus" @click="btnJian">-</span>
            {{ item.number }}
            <span class="product_number_plus" @click="btnJia">+</span>
        </div>
    </div>
</template>

<style lang="scss" scoped>
@import '@/style/viriables.scss';
@import '@/style/mixins.scss';
.product {
    padding: .18rem;
    box-sizing: border-box;
    display: flex;
    position: relative;
    border-bottom: .01rem solid $content-bgColor;

    &_img {
        width: .68rem;
        margin-right: .18rem;

        img {
            width: .68rem;
            height: .68rem;
        }
    }
    &_img--min {
        width: .48rem;
        margin-right: .18rem;

        img {
            width: .48rem;
            height: .48rem;
        }
    }
    &_content {
        flex: 1;
        display: flex;
        flex-direction: column;
        justify-content: space-between;

        &_title {
            font-size: .14rem;
            font-weight: bold;
            color: $content_fontcolor;
            @include ellipse;
        }
        &_price {
            color: $hightlight-fontColor;
        }
        &_old_price {
            color: $light-fontColor;
            text-decoration: line-through;
        }
    }
    &_number {
        position: absolute;
        right: .18rem;
        bottom: .18rem;

        &_minus,&_plus {
            display: inline-block;
            width: .2rem;
            height: .2rem;
            border-radius: 50%;
            font-size: .16rem;
            text-align: center;
        }
        &_minus {
            border: .01rem solid $medium-fontColor;
            color: $medium-fontColor;
            margin-right: .08rem;
        }
        &_plus {
            background-color: $btn-bgColor;
            color: $bgColor;
            margin-left: .08rem;
        }
    }
}
</style>